3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 * This test performs the system hardware monitoring.
31 * The test passes when all the following voltages and temperatures
32 * are within allowed ranges:
42 * CCFL is not enabled if temperature values are not within allowed ranges
44 * See the list off all parameters in the sysmon_table below
51 #if CONFIG_POST & CONFIG_SYS_POST_SYSMON
53 DECLARE_GLOBAL_DATA_PTR
;
55 static int sysmon_temp_invalid
= 0;
59 #define RELOC(x) if (x != NULL) x = (void *) ((ulong) (x) + gd->reloc_off)
61 typedef struct sysmon_s sysmon_t
;
62 typedef struct sysmon_table_s sysmon_table_t
;
64 static void sysmon_lm87_init (sysmon_t
* this);
65 static void sysmon_pic_init (sysmon_t
* this);
66 static uint
sysmon_i2c_read (sysmon_t
* this, uint addr
);
67 static uint
sysmon_i2c_read_sgn (sysmon_t
* this, uint addr
);
68 static void sysmon_ccfl_disable (sysmon_table_t
* this);
69 static void sysmon_ccfl_enable (sysmon_table_t
* this);
74 void (*init
)(sysmon_t
*);
75 uint (*read
)(sysmon_t
*, uint
);
78 static sysmon_t sysmon_lm87
=
79 {CONFIG_SYS_I2C_SYSMON_ADDR
, sysmon_lm87_init
, sysmon_i2c_read
};
80 static sysmon_t sysmon_lm87_sgn
=
81 {CONFIG_SYS_I2C_SYSMON_ADDR
, sysmon_lm87_init
, sysmon_i2c_read_sgn
};
82 static sysmon_t sysmon_pic
=
83 {CONFIG_SYS_I2C_PICIO_ADDR
, sysmon_pic_init
, sysmon_i2c_read
};
85 static sysmon_t
* sysmon_list
[] =
98 void (*exec_before
)(sysmon_table_t
*);
99 void (*exec_after
)(sysmon_table_t
*);
115 static sysmon_table_t sysmon_table
[] =
117 {"Board temperature", " C", &sysmon_lm87_sgn
, NULL
, sysmon_ccfl_disable
,
118 1, 1, -128, 127, 0xFF, 0x58, 0xD5, 0, 0x6C, 0xC6, 0, 0x27},
120 {"Front temperature", " C", &sysmon_lm87
, NULL
, sysmon_ccfl_disable
,
121 1, 100, -27316, 8984, 0xFF, 0xA4, 0xFC, 0, 0xB2, 0xF1, 0, 0x29},
123 {"+3.3V CPU logic", "V", &sysmon_lm87
, NULL
, NULL
,
124 100, 1000, 0, 4386, 0xFF, 0xB6, 0xC9, 0, 0xB6, 0xC9, 0, 0x22},
126 {"+ 5 V logic", "V", &sysmon_lm87
, NULL
, NULL
,
127 100, 1000, 0, 6630, 0xFF, 0xB6, 0xCA, 0, 0xB6, 0xCA, 0, 0x23},
129 {"+12 V PCMCIA", "V", &sysmon_lm87
, NULL
, NULL
,
130 100, 1000, 0, 15460, 0xFF, 0xBC, 0xD0, 0, 0xBC, 0xD0, 0, 0x21},
132 {"+12 V CCFL", "V", &sysmon_lm87
, NULL
, sysmon_ccfl_enable
,
133 100, 1000, 0, 15900, 0xFF, 0xB6, 0xCA, 0, 0xB6, 0xCA, 0, 0x24},
135 {"+ 5 V standby", "V", &sysmon_pic
, NULL
, NULL
,
136 100, 1000, 0, 6040, 0xFF, 0xC8, 0xDE, 0, 0xC8, 0xDE, 0, 0x7C},
138 static int sysmon_table_size
= sizeof(sysmon_table
) / sizeof(sysmon_table
[0]);
140 static int conversion_done
= 0;
143 int sysmon_init_f (void)
148 /* Power on CCFL, PCMCIA */
149 reg
= pic_read (0x60);
151 pic_write (0x60, reg
);
153 for (l
= sysmon_list
; *l
; l
++) {
160 void sysmon_reloc (void)
165 for (l
= sysmon_list
; *l
; l
++) {
171 for (t
= sysmon_table
; t
< sysmon_table
+ sysmon_table_size
; t
++) {
172 RELOC(t
->exec_before
);
173 RELOC(t
->exec_after
);
178 static char *sysmon_unit_value (sysmon_table_t
*s
, uint val
)
182 s
->unit_min
+ (s
->unit_max
- s
->unit_min
) * val
/ s
->val_mask
;
192 unit_val
= -unit_val
;
197 p
= buf
+ sprintf(buf
, "%c%2d", sign
, unit_val
/ s
->unit_div
);
200 frac
= unit_val
% s
->unit_div
;
202 frac
/= (s
->unit_div
/ s
->unit_precision
);
204 dec
= s
->unit_precision
;
209 for (dec
/= 10; dec
!= 0; dec
/= 10) {
210 *p
++ = '0' + (frac
/ dec
) % 10;
212 strcpy(p
, s
->unit_name
);
217 static void sysmon_lm87_init (sysmon_t
* this)
221 /* Detect LM87 chip */
222 if (i2c_read(this->chip
, 0x40, 1, &val
, 1) || (val
& 0x80) != 0 ||
223 i2c_read(this->chip
, 0x3E, 1, &val
, 1) || val
!= 0x02) {
224 printf("Error: LM87 not found at 0x%02X\n", this->chip
);
228 /* Configure pins 5,6 as AIN */
230 if (i2c_write(this->chip
, 0x16, 1, &val
, 1)) {
231 printf("Error: can't write LM87 config register\n");
235 /* Start monitoring */
237 if (i2c_write(this->chip
, 0x40, 1, &val
, 1)) {
238 printf("Error: can't write LM87 config register\n");
243 static void sysmon_pic_init (sysmon_t
* this)
247 static uint
sysmon_i2c_read (sysmon_t
* this, uint addr
)
250 uint res
= i2c_read(this->chip
, addr
, 1, &val
, 1);
252 return res
== 0 ? val
: -1;
255 static uint
sysmon_i2c_read_sgn (sysmon_t
* this, uint addr
)
258 return i2c_read(this->chip
, addr
, 1, &val
, 1) == 0 ?
259 128 + (signed char)val
: -1;
262 static void sysmon_ccfl_disable (sysmon_table_t
* this)
264 if (!this->val_valid_alt
) {
265 sysmon_temp_invalid
= 1;
269 static void sysmon_ccfl_enable (sysmon_table_t
* this)
273 if (!sysmon_temp_invalid
) {
274 reg
= pic_read (0x60);
276 pic_write (0x60, reg
);
280 int sysmon_post_test (int flags
)
287 * The A/D conversion on the LM87 sensor takes 300 ms.
289 if (! conversion_done
) {
290 while (post_time_ms(gd
->post_init_f_time
) < 300) WATCHDOG_RESET ();
294 for (t
= sysmon_table
; t
< sysmon_table
+ sysmon_table_size
; t
++) {
295 if (t
->exec_before
) {
299 val
= t
->sysmon
->read(t
->sysmon
, t
->addr
);
301 t
->val_valid
= val
>= t
->val_min
&& val
<= t
->val_max
;
302 t
->val_valid_alt
= val
>= t
->val_min_alt
&& val
<= t
->val_max_alt
;
305 t
->val_valid_alt
= 0;
312 if ((!t
->val_valid
) || (flags
& POST_MANUAL
)) {
313 printf("%-17s = %-10s ", t
->name
, sysmon_unit_value(t
, val
));
314 printf("allowed range");
315 printf(" %-8s ..", sysmon_unit_value(t
, t
->val_min
));
316 printf(" %-8s", sysmon_unit_value(t
, t
->val_max
));
317 printf(" %s\n", t
->val_valid
? "OK" : "FAIL");
328 #endif /* CONFIG_POST & CONFIG_SYS_POST_SYSMON */